When psychiatrist Y/N accepts a position at the infamous Blackthorn Psychiatric Institute, she expects difficult patients, long nights, and emotionally draining work — not Lucien Vale, Roman Vesper, and Kairo Novak. The three young men are considered the most dangerous patients in the hospital: unstable, manipulative, and impossible to control. Staff are warned to keep their distance, especially from the charming but deeply fractured trio who seem to drag destruction wherever they go. But the more Y/N is pulled into their world of trauma, obsession, and blurred morality, the more she begins to realize Blackthorn hides far darker secrets than the patients locked inside it. And while Dr. Elias Mercer insists the boys will ruin her, Y/N starts to wonder if the real danger has been standing in a white coat all along.